Methyl propyl Ether

D

D

D

-

-

D

-

-

-

A

A

Methyl Propyl Ketone

D

D

B

-

-

D

-

B

D

A

A

Methyl SaIycilate

D

D

B

B

-

D

-

-

C

B

B

Methyl Sulphonic Acid

-

-

-

-

-

-

-

-

A

A

Methylene Bromide

D

D

D

D

D

D

D

D

B

B

B

Methylene Chloride

D

D

D

D

D

D

D

D

B

B

B

Mineral Oil

D

D

D

D

D

A

C

B

A

A

A

Monochlorobenzene

A

A

B

A

-

A

-

A

A

A

A

Motor Oil

D

D

D

D

D

A

D

D

A

A

A

Muriatic Acid 50°C

A

C

B

C

-

D

-

A

A

A

A

Naphta (Petroleum Ether)

D

D

D

D

D

A

D

D

A

C

C

Naphtalene

D

D

D

D

D

D

D

D

A

A

A

Napthenic Acid

D

D

D

D

-

C

-

-

A

-

-

Natural Gas

D

D

D

D

D

A

D

D

A

A

A

Neatsfoot oil

D

D

B

B

-

A

-

-

A

-

-

Nickel Acetate

A

A

A

-

-

B

-

-

A

-

-

Nickel Chloride (65°C)

A

A

A

A

-

A

-

A

A

A

A

Nickel Nitrate

A

A

A

A

-

A

-

A

A

A

A

Nickel Plating Solution

A

D

-

-

-

B

-

B

-

A

A

Nickel Sulfate 65°C

A

A

A

A

A

A

A

A

A

A

A

Nitric Acid 10% 80°C

D

D

B

B

A

D

C

B

D

B

B

Nitric Acid 20% 65°C

D

D

B

B

A

D

D

D

A

A

A

Nitric Acid 30% 50°C

D

D

B

B

A

D

D

D

A

A

A

Nitric Acid 30-65%

D

D

D

D

B

D

D

D

A

D

D

Nitric Acid, Red Fuming

D

D

D

D

D

D

D

D

D

D

D

Nitrobenzene

D

D

D

D

D

D

D

D

B

A

A

Nitrogen Gas

A

A

A

A

A

A

A

A

A

A

A

Nitrogen Tetraoxide

D

D

C

C

-

D

-

D

D

-

-

Nitromethane

B

B

B

B

-

D

-

C

D

A

A

Nitropropane

C

C

A

A

A

D

B

A

B

A

A

Nitrous Oxide

A

A

A

A

A

A

A

A

A

A

A

Octadecanoid Acid

C

C

A

A

A

B

C

C

A

A

A

Octane

D

D

D

D

D

A

D

C

A

B

B

Octanol

B

B

B

B

B

B

B

B

A

A

A

Octyl Acetate

D

D

A

B

-

D

-

D

D

A

A

Octyl Amine

C

C

B

B

-

C

-

C

D

A

A

Octylene Glycol

A

A

A

A

-

A

-

A

A

A

A

Oil ASTM 1

D

D

D

D

D

A

C

B

A

A

A

Oil ASTM 2

D

D

D

D

D

A

D

C

A

A

A

Oil ASTM 3

D

D

D

D

D

A

D

D

A

A

A

Oleic Acid

C

C

B

B

B

B

B

B

A

A

A

Olive Oil

D

D

C

C

B

A

C

C

A

A

A

Orthodichlorobenzene

D

D

D

D

-

D

-

D

A

A

A

Oxalic Acid

C

C

A

A

A

B

B

B

A

A

A

Oxigen Cold

B

B

A

A

-

B

B

B

A

A

A

Oxigen Hot

D

D

D

D

A

D

B

B

B

-

-

Ozone

D

D

B

A

A

C

A

A

A

A

A

P-Cymene

D

D

D

D

D

C

D

D

A

A

A

P-Dichlorobenzene

D

D

D

D

D

D

D

D

A

A

A

Paint Thinner (DUCO)

D

D

D

D

-

-

-

-

B

-

-

Palm Oil

-

D

D

A

-

B

-

A

A

A

A

Palmitic Acid

C

C

C

C

C

A

C

C

A

B

B

Papermaker's Alum 65oC

A

A

A

A

-

A

-

A

A

A

A

Paraffin 80°C

D

D

C

C

C

A

C

C

A

A

A

Paraformaldeyde

D

D

B

-

-

B

-

B

C

B

B

Penaut Oil

D

D

D

D

C

A

B

B

A

A

A

Pentane

D

D

D

D

D

A

C

B

A

A

A

Peracetic Acid 40%

-

-

-

-

-

-

-

-

-

C

C

Perchlloroethylene

D

D

D

D

D

D

D

D

A

A

A

Petroleum

D

D

D

D

D

A

D

D

A

A

A

Phenol 50°C

C

C

B

B

A

D

C

C

A

A

A

Phenolsulfonic Acid

D

D

C

-

-

D

-

D

D

B

B

Phenyl Chloride

D

D

D

-

-

D

-

D

A

A

A

Phenylhydrazine

C

C

B

B

A

D

D

D

A

A

A

Phosphate Esters

D

D

A

A

A

D

C

C

C

A

A

Phosphoric Acid

D

D

A

A

A

C

C

C

A

A

A

Phosphorous Trichloride

D

D

D

A

-

D

-

D

A

-

-

Pickling solution

A

-

C

C

-

C

-

C

B

A

A

Picric Acid, Molten

C

C

B

B

A

C

B

B

C

D

D

Picric Acid, Water Soln.

C

C

A

A

A

C

B

B

B

A

A